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Finding the Fourth Proportional to 130,043.55, 179,451.54 and 75,591.03

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Solution

The fourth proportional to 130,043.55, 179,451.54 and 75,591.03 is: 104,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,043.55 : 179,451.54 = 75,591.03 : x
  2. Step 2: Convert to fraction form
    130,043.55/179,451.54 = 75,591.03/x
  3. Step 3: Cross multiply
    130,043.55x = 179,451.54 × 75,591.03
  4. Step 4: Simplify right side
    130,043.55x = 13,564,926,743.69
  5. Step 5: Solve for x
    x = 13,564,926,743.69/130,043.55
  6. Step 6: Final answer
    x = 104,310.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.